Speaker
Description
Support for CAD-based geometries through conversion into Unstructured Mesh (UM) elements was introduced as of FLUKA v4-5.0, strongly enhancing the workflow between engineering design and radiation transport simulations, as well as allowing for the use of state-of-the-art anthropomorphic mesh phantoms.
FLUKA’s optimized implementation, utilizing the capabilities of Flair’s geoviewer kernel, enables the import of CAD-derived UMs composed of tetrahedral, pentahedral, or hexahedral elements, while supporting different mesh formats. Complex engineered geometries can now be constructed by concatenating multiple UMs and combining them with conventional constructive-solid-geometry bodies and lattice elements for periodic structures. To further facilitate interplay between FLUKA and engineering software and to extend the use of UM geometries for internal dosimetry studies, the implementation supports scoring within individual UM elements and uniform particle sampling in UM-defined regions.
The upgraded capabilities of FLUKA are demonstrated by two representative applications. The first exploits the support of UMs to implement the ICRP 145 mesh phantoms into FLUKA and calculate a consistent set of particle-fluence-to-effective-dose conversion coefficients. The second application demonstrates the assembly of an accelerator beam line geometry in FLUKA, where individual components represented by UMs are combined using the recently released LineBuilder (LB) tool.
| Topics | T2. Code status, development and model converters |
|---|